I too add my condolenses.
Les T it sounds like you are referring to Heysel when the English Teams were banned en masse after the Liverpool v Juventus tragedy. UEFA's decision then was wrong and in my view based on bias rather than justice. However I do not want a blanket ban on Italian clubs because it will serve no point.
UEFA are usually useless in most areas of "justice" (their 'Fair Play' campaign is a joke in my opinion) but I cannot see what they can do regarding the tragic circumstances in Italy. Let's hope the culprits are found by the authorities (i.e. Police) and are suitable punished.